If you're making a coil, however, then "Q" comes into play, and you might want to use silver plated (or solid silver) wire in that application.
Not worth the trouble.http://www.bnk.com/w0qe/inductor_Q_tests.html
Therefore if I use a silver plated inductor, with silver plating at least 4 skin depths thick the best Q will be about 4% higher than the same shape inductor made with bare shiny copper wire of the same size.
Silver is a very good contact material and I think silver plated wire might be superior for a roller inductor, but I think in the end siver is mostly just for making things pretty if you're using a fixed coil at HF.
I think that spending the time needed to source some silver plated wire might be better spent on optimizing the layout and inductor form factor to maximize and maintain the coil Q!